Alarm device convenient to disassemble and used for thermal control of thermal power plant

The utility model discloses a convenient-to-disassemble alarm device for thermal control of a thermal power plant, belongs to the technical field of safety measures, and aims to solve the problems that in the prior art, when a temperature alarm is disassembled, threaded connection between a plurality of bolts and corresponding mounting holes needs to be canceled in sequence, and when the temperature alarm is disassembled and maintained, time is wasted, disassembly is inconvenient, and the maintenance cost is high. The utility model relates to a temperature alarm, in particular to a multifunctional temperature alarm, which solves the problems that the use length of a power line cannot be adjusted according to the actual distance of a connecting socket when the temperature alarm is used, the power line is too long, the occupied space is large, and the appearance is not attractive. The shell is rotationally connected with a column body through a bearing, the column body is sleeved with a fluted disc, threaded co